Daytronic IL78A Bedienungsanleitung
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IL78A
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The Model IL78A is a single-channel conditioner of phase-sensitive carrier-amplifier design.
Intended for applications involving transformer-coupling to the transducer bridge (as with rotary-
transformer torque sensors), this conditioner can also be used in conventional installations when
high sensitivity is required or where the electrical envi
ronment is especially noisy. Responding
only to the modulated carrier frequency, the IL78A rejects extraneous voltages that can cause
errors in DC systems, particularly when there is a need to “blow up” a portion of the transducer
range. User-adjustable phase and symmetry controls are provided.
1 GENERAL DESCRIPTION AND SPECIFICATIONS
IN-LINE AC Strain Gage Conditioner
MODEL IL78A
AC Strain Gage
C
ONDITIONER Module
IL78A
GENERAL DESCRIPTION AND SPECIFICATIONS IL78A.1
Top View of the Model IL78A AC Strain Gage Module (cover removed)
AC Strain Gage Phase Operation
Due to the AC modulated aspects of the IL78A AC Voltage excitation circuit, the IL78A8 contains a "PHASE"
adjustment whi
ch aligns the transducer's return output signal to the conditioner's demodulator. When the
demodulator is aligned properly through calibration, maximum amplitude and linearity are achieved.
The Model IL78A's is calibrated by means of a “two-point (dead-weight)” or shunt-calibration
technique, which are outlined in section three. The user can utilize the shunt calibration method
by adding the correct leaded shunt resistor value from "Cal Sense" to either + Sense or - Sense
depending on the polarity desired.
Shunt Operation: Located between the two screw terminal connectors, t
he IL70A contains a Shunt resistor jumper
selection. "EXT" is for an external - user installed shunt or
"INT" for the internal - built in - 59K Ohm shunt. Installing the jumper
enables the selected feature. For an external shunt resistor, install the leaded resistor between the "Cal Sense" (pin 7) terminal
and either the + Signal (pin 5) or the - Signal (pin 6) terminals. Use the SW4 "Shunt" button to engage the shunt resistor across
the selected side of the bridge or "SHP or "SHN" logic input lines. For transducers with an installed shunt resistor, place the
jumper on the "EXT" teminals and wire the "Cal Sense" line to the transducer's shunt connector pin.
92371.00 rev. B
WARNING
Death, serious injury, or fire
hazard could result from improper connection of this instrument. Read and understand this
manual before connecting this instrument. Follow all installation and operating instructions while using this instrument.
Connection of this instrument must be performed in compliance with the National Electrical Code (ANSI/NFPA 70-2014) of
USA
and any additional safety requirements applicable to your installation.
Installation, operation, and maintenance o
f this instrument must be performed by qualified personnel only. The National
Electrical Code defines a qualified person as “one who has demonstrated the skills and knowledge related to the construction
and operation of the electrical equipment and installations, and who has received safety training on the hazards involved.”
Qualified personnel who work on or near exposed energized electrical conductors must follow applicable safety related
work
practices and procedures including appropriate personal protective equipment in compliance with the Standard for
Electrical Safety Requirements for Employee Workplaces (ANSI/NFPA 70E-2012) of USA and any additional workplace safety
requirements applicable to your installation.
ADVERTENCIA
Una conexión incorrecta de este instrumento puede producir la muerte, lesiones graves y riesgo de incendio. Lea y entienda
este manual antes de conectar. Observe todas las instrucciones de instalación y operación durante el uso
de este
instrumento.
La conexión de este instrumento a un sistema eléctrico se debe realizar
en conformidad con el Código Eléctrico Nacional
(ANSI/NFPA 70-2014) de los E.E.U.U., además de cualquier otra norma de seguridad correspondiente a su
establecimiento.
La instalación, operación y mantenimiento de este instrumento debe ser realizada por personal calificado solamente. El
Código Eléctrico N
acional define a una persona calificada como "una que esté familiarizada con la construcción y operación del
equipo y con los riesgos involucrados."
El personal cualificado que trabaja encendido o acerca a los conductores eléctricos energizados expuestos debe seguir
prácticas y procedimientos relacionados seguridad aplicable del trabajo
incluyendo el equipo protector personal apropiado
en conformidad con el estándar para los requisitos de seguridad eléctricos para los lugares de trabajo del empleado (ANSI/
NFPA 70E-2012) de los E.E.U.U. y cualquier requisito de seguridad adicional del lugar de trabajo aplicable a su instalación.
AVERTISSEMENT
Si l'instrument est mal connecté, la mort, des blessures graves, ou un danger d'incendie peuvent s'en suivre. Lisez
attentivement ce manuel avant de connecter
l'instrument. Lorsque vous utilisez l'instrument, suivez toutes les
instructions d'installation et de service.
Cet instrument doit être connecté conformément
au National Electrical Code (ANSI/NFPA 70-2014) des Etats-Unis et à
toutes les exigences de sécurité applicables à votre installation.
Cet instrument doit être installé, utilisé et entretenu uniquement par un personnel qualifié. Selon le National Electrical
Code, une personne
est qualifiée si "elle connaît bien la construction et l'utilisation de l'équipement, ainsi que les dangers
que cela implique".
Le personnel qualifié qui travaillent dessus ou s'approchent des conducteurs électriques activés exposés doit suivre des
pratiques en ma
tière et des procédures reliées par sûreté applicable de travail comprenant le matériel de protection
personnel approprié conformément à la norme pour des conditions de sûreté électriques pour les lieux de travail des
employés (ANSI/NFPA 70E-2012) des Etats-Unis et toutes les conditions de sûreté additionnelles de lieu de travail
applicables à votre installation.
Produktspezifikationen
| Marke: | Daytronic |
| Kategorie: | Nicht kategorisiert |
| Modell: | IL78A |
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